Cooper M3000 Betriebsanweisung Seite 17

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1-1
CHAPTER
1
XSCF Overview
This chapter provides an overview of the system monitoring and control facility (eXtended
System Control Facility, or XSCF).
1.1 XSCF Features
The XSCF firmware is a system monitoring and control facility consisting of a dedicated
processor (Note 1) that is independent from the system processor. While input power is
supplied to the server, the XSCF constantly monitors the server even if no domain is active.
The XSCF provides an interface between the user and the server.
The XSCF is the firmware running on the Service Processor in the server. In the rest of this
chapter, although XSCF firmware programs are called XSCF firmware, or XSCF, they all
have the same meaning. The board with the installed XSCF firmware is called the XSCFU
(also referred to as the "XSCF Unit") or Service Processor.
The XSCF uses different functions to achieve high system availability. The XSCF firmware
is a single centralized point for the management of hardware configuration, control of
hardware monitoring, cooling system (fan units), domain status monitoring, power on and
power off of peripheral devices (Note 2), and error monitoring. The XSCF centrally controls
and monitors the server. The XSCF also has a partitioning function to configure and control
domains, and it has a function to monitor the server through an Ethernet connection so that
the user can control the server remotely. Another function is to report failure information to
the system administrator and a remote control input/output function.
In the SPARC Enterprise M3000 server (the M3000 server; the entry-level server) and the
SPARC Enterprise M4000/M5000 (the M4000/M5000 servers; the midrange servers), a
single XSCF Unit is installed in the server. In the SPARC Enterprise M8000/M9000 servers
(the M8000/M9000 servers; the high-end servers), two XSCF Units are installed in the server
and they are duplicated. Also, in the M3000 server, the XSCF Unit is fixed to the
Motherboard Unit (MBU). For details of the server differences, see Section 1.2.1, “Major
Differences Among the Server Models” on page 1-14.
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